package state;

/**
 * @author Koizumi Sinya
 * @date 2018/04/01. 17:30
 * @edithor
 * @date
 */
public class Main {
    public static void main(String[] args) {
        TvStateControl control = new TvStateControl();
        control.powerOn();
        control.nextChannel();
        control.preChannel();
        control.powerOff();
        control.powerOff();
    }
}
